linux-kernel - Re: [PATCH 1/2] dt-bindings: net: phy: Support external PHY xtal

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Message-ID: <5f5f6412-f466-9a3f-3ec7-aa45ab0049c6@linaro.org>
Date:   Thu, 1 Jun 2023 18:52:18 +0200
From:   Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To:     Detlev Casanova <detlev.casanova@...labora.com>,
        Andrew Lunn <andrew@...n.ch>
Cc:     linux-kernel@...r.kernel.org,
        Heiner Kallweit <hkallweit1@...il.com>,
        Russell King <linux@...linux.org.uk>,
        "David S . Miller" <davem@...emloft.net>,
        Eric Dumazet <edumazet@...gle.com>,
        Jakub Kicinski <kuba@...nel.org>,
        Paolo Abeni <pabeni@...hat.com>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Conor Dooley <conor+dt@...nel.org>,
        Florian Fainelli <f.fainelli@...il.com>,
        netdev@...r.kernel.org, devicetree@...r.kernel.org
Subject: Re: [PATCH 1/2] dt-bindings: net: phy: Support external PHY xtal

On 31/05/2023 20:00, Detlev Casanova wrote:
>>> +  clock-names:
>>> +    items:
>>> +      - const: xtal
>>
>> I don't think xtal is the best of names here. It generally is used as
>> an abbreviation for crystal. And the commit message is about there not
>> being a crystal, but an actual clock.
>>
>> How is this clock named on the datasheet?
> 
> In the case of the PHY I used (RTL8211F), it is EXT_CLK. But this must be 
> generic to any (ethernet) PHY, so using ext_clk to match it would not be
> good either.
> 
> Now this is about having an external clock, so the ext_clk name makes sense in 
> this case.
> 
> I'm not pushing one name or another, let's use what you feel is more natural.

Just drop the name.

Best regards,
Krzysztof